CD catch placement/position on Hog

I have had some cd's that caught strictly ear and they seem to be in a safer spot for the most part than if they chose somewhere else to catch. Currently I have a pit that will only catch bridge of the nose between the snout and eyes. I've tried to break him from it several times and he always goes back to the same place. He can handle himself on most pigs but a big pig, especially a big boar, will toss him every now and then. He doesn't lose his grasp, but will lose his power in the front end. It has never affected him and he hasn't been cut other than just skin since I've owned him. I would rather him catch ear, but oh well, atleast I don't have to worry about him trying to leg a pig.